Polyarthritis of calves: isolation of psittacosis agents from affected joints.
D000818:Animals; D001170:Arthritis, Infectious / Q000276:immunology / Q000382:microbiology* / Q000662:veterinary*; D002417:Cattle; D002418:Cattle Diseases / Q000209:etiology*; D002689:Chlamydia / Q000276:immunology / Q000302:isolation & purification*; D004926:Escherichia coli / Q000302:isolation & purification; D010325:Pasteurella / Q000302:isolation & purification; D012475:Salmonella / Q000302:isolation & purification; D013582:Synovial Fluid / Q000382:microbiology*